It is easier to understand people when they take sides. You may not agree with the Ku Klux Klan or the Sierra Club, but you can understand them.
By contrast, it is harder to winkle out what is honest when someone positions himself as "taking no sides." Is he just posturing like some lazy, self-serving intellectual? Or is he stating something honest?
Of course there is always the possibility that someone may not give a shit. But that is pretty straightforward -- an understandable side of whatever the issue might be.
When I was a news reporter, one of the touchstones of the business was "objectivity," the willingness to step away from the passions of the subject and simply report the facts. It took me a number of years to realize that "objectivity" was a myth and a few more years to realize that it was a myth worth sustaining. Anyone who is as tired as I am of reading sincere but incompetent opinions on the internet will see the value of the myth.
But nowadays, as the walls mortared by the myth of objectivity crumble, I feel more reassured by the argument that takes sides. The argument may be dumb as a box of rocks, but I can understand rocks ... rocks don't pretend or make excuses.